Stop by to meet us and representatives from STAR, the PHI/CDC Fellowship Program and GHTP at Booth #907

 PHI Lead Presenters 


Senior Scientist, Alcohol Research Group
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Cherpitel's work focuses on the epidemiology of alcohol, drug use and injuries in emergency room (ER) populations globally, and in the general population. She also studies the validity of self-reported alcohol consumption, health services utilization, risk taking and risk curve analysis of alcohol and injuries, along with screening and brief intervention for alcohol problems.


Senior Scientist & Scientific Director, Alcohol Research Group
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Greenfield's expertise includes the epidemiology of alcohol use and problems, alcohol policy studies, alcohol-related problem and consumption measurement, drinking patterns and mortality, cultural and ethnic variations in drinking behavior; US and cross-national population studies; services research and consumer satisfaction; and alcohol’s harm to others.



Senior Scientist

Alcohol Research Group

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Kerr's expertise includes the methodology of alcohol use measurement, trends in U.S. alcohol consumption and the underlying causes and relationships between alcohol use and health outcomes. He also researches health disparities; economic conditions and alcohol problems. and alcohol control policy analyses and evaluation.


Research Scientist, California Pregnancy-Associated Mortality Review

McCain has been a research scientist for the California Pregnancy-Associated Mortality Review for the last 13 years. She manages data collection, data management and data analysis.



Senior Media Researcher, Berkeley Media Studies Group
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Mejia leads qualitative and quantitative analyses of how the media portrays public health and social justice issues, including sexual and family violence, teen dating violence, childhood trauma, community violence prevention, food marketing to children, sugary drink regulation, and tobacco control. Her research on these and other issues has appeared in the American Journal of Public Health, Critical Public Health, and the Journal of Child Sexual Abuse. She holds a bachelor's degree in human nutrition from Washington State University, as well as master's degrees in biochemistry and public health from the University of California at Berkeley.



Director, Center for Health Leadership & Practice; Vice President for External Relations, PHI

Nevarez is vice president, external relations and preventive medicine at Public Health Institute. She directs Center for Health Leadership and Practice, supporting communities addressing complex issues through broad-based collaborations. Her current main focus areas include health equity, chronic disease and opioid use disorder. Nevarez has served as president of APHA, is a member of the Latino Coalition for a Healthy California board, and is board chair of the Langeloth Foundation.


Research Scientist, PHI

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Padon is a Research Scientist at the Public Health Institute. Her research focuses on the impact of the availability and marketing of alcohol, tobacco, cannabis and sugar-sweetened beverages on public health and youth, with a specific focus on regulatory measures to mitigate harms. She has worked in research for the past 17 years. She earned her masters’ degree in biomedical ethics at the University of Pennsylvania, her doctorate in public health at the Johns Hopkins Bloomberg School of Public Health, and she completed her post-doctoral work at the Annenberg School for Communication at the University of Pennsylvania.




Director, Getting it Right from the Start: Regulation of Recreational Marijuana

Silver is a pediatrician and public health advocate, Senior Advisor at the Public Health Institute (PHI), and Clinical Professor at University of California San Francisco. She directs PHI’s Prevention Policy group, including Getting it Right from the Start: Regulation of Recreational Marijuana, which works to support marijuana policies that learn from tobacco and alcohol control to better protect youth, public health and equity. She's worked widely on health policy as a researcher, educator, government official, and advocate, Silver received her MD and MPH degrees from Johns Hopkins University, and has published widely on public health. 



Postdoctoral Fellow, Alcohol Research Group

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Trangenstein's research focuses on structural determinants of alcohol use and alcohol-related harms with a special emphasis on alcohol policies and alcohol-related harms experienced by persons other than the drinker. After completing her post-doctoral fellowship at the Alcohol Research Group, Trangenstein accepted a position as an Assistant Professor at the University of North Carolina at Chapel Hill Gillings School of Public Health.



Program Manager, PHI/CDC Global Health Fellowship Program
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Caraballo is the Program Manager for the PHI/CDC Global Health Fellowship Program. In her role as Program Manager, she is responsible for overall day to day management of the program. This also includes serving as the primary contact for CDC management and mentors and leading efforts in the development and interpretation of program policies and procedures. Carabrings 14 years of extensive experience supporting non-profit, federally funded global health programs through program management, recruitment, and customer relations. She holds a BA in Sociology from San Diego State University.


Director, Build Healthy Places Network
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Flynn is Director of National Programs at Build Healthy Places Network where she oversees program and project implementation and partnership development. She brings more than a decade of experience crafting community development strategies that address health disparities. Prior to joining the Network, Flynn was the Director of Programs at Local Initiatives Support Corporation (LISC) NYC office. She oversaw multiple programs that incorporate health into LISC’s equitable development efforts. In this role, Flynn developed cross-sector collaborations in NYC communities to address food access and green and healthy affordable housing and join health care centers with a variety of community partners.


Program Director, Sustaining Technical and Analytic Resources (STAR)

Hausner is responsible for the overall leadership and management of the Sustaining Technical and Analytic Resources (STAR) project, a new large-scale USAID-funded global health internship and fellowship program. Hausner earned his Masters in Public Health (MPH) and his Masters in International Affairs (MIA) from Columbia University, and his PhD in International Public Health from Johns Hopkins University.



Project Director, Rise Up

Lordi has worked at the Public Health Institute for over twenty years on a range of projects in the areas of survey research, international health, family planning and reproductive health. Current projects include questionnaire development for the  California Health Interview Survey. Lordi received her MSc in Epidemiology (Distance) from the University of London/London School of Hygiene and Tropical Medicine and her BA from Rutgers University.


Health Educator, Tracking California

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Madrigal is a health educator with the Tracking California where he works to make environmental health information accessible and actionable for California residents. His interests include immigration, environmental justice, community engaged research, and developing a diverse public health workforce.



Research Program Director, PHI

Nemoto is Research Program Director at the Public Health Institute (PHI). Before joining PHI, Dr. Nemoto was Associate Professor, Department of Medicine, University of California San Francisco (UCSF). He has been mainly engaging in substance abuse and HIV prevention studies and service projects for under-served and stigmatized populations, such as transgender and gender non-binary people, men who have sex with men (MSM), and sex workers in the U.S. and Asian countries, such as Thailand, Vietnam, Cambodia, and Malaysia. He has been awarded a number of grants and service contracts from NIH, SAMHSA, CDC, HRSA, and private foundations. 


Media Researcher, Berkeley Media Studies Group
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Nixon has analyzed media coverage of public health issues for BMSG since 2012. Her research has included analyses of news coverage and social media conversations about sugary drink taxes, violence prevention, tobacco control, abortion and many others. 



Principal Investigator and Senior Research Scientist, Population Health Innovation Lab

Ryan-Ibarra is a Principal Investigator and Senior Research Scientist at the Public Health Institute. She has more than 10 years of experience in public health, particularly in obesity prevention, program evaluation, population health, and epidemiology. Her expertise includes study design, data collection, and data analysis for qualitative and quantitative methods. Ryan-Ibarra currently provides scientific oversight and statistical expertise for the Center for Wellness and Nutrition; the Population Health Innovations Lab; and the Survey Research Group. She is currently a Co-Investigator for multiple research and evaluation projects based throughout the nation that focus on evaluating the economic and health impacts of community-based obesity prevention interventions, including SNAP-Ed programs.


Founder and Executive Director, Global Health Leaders and GOJoven International 

Tahrir is Founder and Executive Director of Global Health Leaders and GOJoven International at the Public Health Institute. She is a public health education specialist focused on strengthening public health leadership globally with more than 25 years of experience working in public, reproductive and sexual, and chronic disease health. She has designed and driven successful leadership development and fellowship programs in Latin America, Africa and Asia for public and private foundations that have strengthened local leadership capacity for hundreds of local leaders resulting in thriving new NGOs and improved public health policies, programs and services.  



Program Manager, Tracking California

Wilkie holds an MHS degree in International Health from Johns Hopkins University, Bloomberg School of Hygiene and Public Health and an MS degree in Agricultural and Resource Economics from University of California, Berkeley. She has 25 years’ experience in program management on federally and privately-funded health programs, and is currently Program Manager of Tracking California, whose mission is to mobilize data to improve public health.

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